package com.jhh.pay.center.util;

import java.util.UUID;

/**
 * @author tangxd
 * @Description: TODO
 * @date 2017/12/12
 */
public class StringUtils {

    public static String random(int size) {
        String uuid = UUID.randomUUID().toString().replace("-", "");
        return uuid.substring(0, size);
    }
}
